At last someone has finally told me how to do it and also the formula for the capacitor/power. I have been waiting for thgis all my 42 year working life. Very didactical and explicit like no one has explained before. Thank you.
I Don't care how he spells as long as he is explaining the right thing and i understand him, thank you jean for loading this video better than not loading this video. and thank you tamas for extra information.
To reverse rotation is enough to connect supply to other side of capacitor. Delta config ports from left: 1 - power (live), 2 - power (neut.)+ cap, 3 - cap = left rotation. 1- power (live), 2 - cap, 3 - power (neutral) + cap = right rotation. If configuration was changed to star You weaken motor substantially because lower voltage on winding section.
hi, your answer catch my attention, however i don't understand by what is 1. 2. and 3. which one of the numbering represent U1 V1 W1 or U2 V2 W2? could you explain it in basic form?
@@easywaycircuit9233 For 3ph motor running capacitor only. 380/400V star configuration motor should be ran on 220/230V with delta configuration and 150uF capacitor (50uF/hp or 70uF/kW). Remember proper type of capacitor (motor run type and voltage ratings).
Thanks to show as That refreshing my mind and what i mist I know and learning from a pro and how do you explaining to me is so wonderful thanks Go on with this greatest to helps the rockies thanks
interesting and verry usefull , i have a drillpress that i need a new condensator for this makes it easy to find the right one a few things i wonder about , does the voltage in the country matter when it comes to the amount of micro fahrad needed ? and if i have a 16 amp fuse at 220 volts i can use about 2500 watt safely (70 percent) without the fuse blowing as soon as you get a peak current draw at startup , will the wattage of the three phase motor be the same with this setup as it would in 3 phase or increase ?
When the motor is running, use a meter to measure the voltages between the windings. Change the size of the capacitor to achieve similar values between windings. Incorrectly sized capacitors can cause high voltages and damaged windings. When you have balanced the voltage across windings, like Jean said, it may be necessary to switch in an additional capacitor to provide sufficient starting torque. Like Tamas said, motor will not achieve its rated power. I need to check how this modification will effect RPM. Leave the terminal links in delta as at the beginning of the video. Just move neutral to the other side of the capacitor to reverse rotation. As per A I Reid below - use an inverter for best results !
thank you for the knowledge. great video. only criticism i have is the capacitor wire you connected to U2 was wrapped on the post backwards. being an electrician you should always wrap the wire clockwaise so when you tighten the nut down, it will tighten on the wire and not try to push it out.
if i have a 3phase motor with a power of 7.5k.. my asks.. can run it over single-phase as the method you explained.. even this motor need more torque for starts because it works on a cement mixer.
Don't know if I am using the wrong capacitors or what could be the problem and I'm plugging into my wall plug that's 30A should I run it from main box, the fan makes as if it wants to start then it just humz then when you put it of you can see it stops
Hi, this trick works for shot term. If you run your motor for an hour or two you will definitely fry it. Use a frequency converter or disconnect the capacitor with a simple switch right after the full revolution of the motor.
If you need to run a three phase motor on single phase, get an inverter drive. This is an effective way and you will not lose any power as running on just single phase does. You get the extra benefit of speed control and inherent overload protection. While the above will run it's not good practice.
@KC JONES It's called a Vfd ( variable frequency drive on e-bay 80 quid in uk )or more common an inverter but proper inveters still use 3phz to supply Still need to be careful full as they Chinese and not all termination is correct you do need to understand electrical drawings if as if ya poke n hope you'll blow it and you up I had one was ok till got pinched had it running of a generator as well so full 3phz portable set up
WE DON'T CARE GOOD PRACTICE OR NOT. IMAGINE YOU ARE IN A JUNGLE, YOU NEED TO RUN THIS MOTOR IN ORDER TO SAVE LIVES. HE DID A GOOD JOB, STOP CRITICISING TO SHOW OFF
Freddo, we are not in a jungle. My advice was to give the best outcome and have a reliable machine that will work as designed. Bodging a three phase supply this way reduces power dramatically.
@@freddokuckelmann8502 *EXACT-A-MUNDO* reminds me when on a date my car's alternator gauge said zero volts. popped the hood no alternator belt, told girl "i need your panty hose" (they were stockings) long story short she was shocked, i ripped them off used as alternator belt... 3 years later became my wife for the next 20 yrs. point is when in *dire straits* we do what we got to do to get the job done. it's money for nothing and chicks for free plus my MTV
@@freddokuckelmann8502 *EXACT-A-MUNDO* reminds me when on a date my car's alternator gauge said zero volts. popped the hood no alternator belt, told girl "i need your panty hose" (they were stockings) long story short she was shocked, i ripped them off used as alternator belt... 3 years later became my wife for the next 20 yrs. point is when in *dire straits* we do what we got to do to get the job done. it's money for nothing and chicks for free plus my MTV
Hi... very informative.. i received a 3ph induction motor which was modded to run off 1ph but i see no cap and direction can be changed/chosen by hand spinning when startup... is it because of missing cap?
You are running in two phase. Cause your motor is 3phase. One phase is missing. Running this motor continuously, you will cause overheating and burn the motor winding. That is why you need this capacitor to compensate the missing phase in order to assist the missing phase voltage supply to the motor, and ease the torque rotation of the motor.
He just wired it wrong for reversing that motor, it will work but half the power of the other direction because he wired as delta for one direction and star for the other, the wiring is the same before but swap the phase and capacitor connection, now you have reversed the motor with the same torque, the capacitor value is approximately 8uf for every 100 watt of motor power, eg 60uf 1hp or 750watt motor.
How is it Jean B I have a 3 phase fan that I connected according to your video but the fan is just humming but not running I don't have a lot of info on the fan because no specifications on the fan it's self wondering if you could help me
Yes, to reverse simply move Live wire from U1 to W1 and move the wire of the capacitor from V2 to W2 and the motor torque is maintained. working from his diagram at 4 Mins. 16 sec, in.
Hi, Thank you for the video. It is very informative. I did follow your step and it worked. But later the motor wont start anymore. Is it because the capacitor or what? Does the capacitor needs to be recharged or not? Please reply me. Thanks!
Hi Naufal If the motor is making a noise as if it wants to start then it might be the capacitor that is faulty. It does not need to be charged. It either works or fails. It might be the motor as well. A coil that fails can cause a motor to stop working completely. If you're lucky it could just be a loose wire...
It would be nice if the diagram was a circuit diagram, also showing the alphabetic letters as they appear on the terminal box! Thanks for the video well done!
I did this on a larger motor but the capacitor started blowing out a white smoke. Do you know why this might happen and also do i always need a capacitor?
You are correct . It's that easy but he isn't aware so he changed the connection to star, which also changes the motor to a higher voltage thus causing it to loose considerable power though it's reversing . The last part of his video is wrong .
@Jean B - Nice presentation style but you could simply move the neutral to the other size of the capacitor to reverse direction. Why conflate Star/Delta with direction change unless you are confused?
Hi In the US we have 2 hots to make 220v. I have a neutral and 2 hots, where would I connect the 3rd wire (perhaps Delta with live, neutral, live, and then start capacitor between neutral and live?)? Thanks
@@CrapInHell (1) Connect the 3 links for delta configuration like in the video. (2) Connect the 2 hot wires to any two of the motor inputs. (3) Connect one side of the Capacitor to the third motor input. (4) Connect the other side of the capacitor to one of the hot terminals for one direction or the other hot terminal for the other direction.
Thanks for the quick response! Do I not need to connect the Neutral line? Will it have enough power to just run with the start capacitor? Thanks again!
@@CrapInHell Leave the neutral open. I am assuming the motor is rated 220/400V, you have two hot phases 120 degree apart. We have single phase 220V hot and neutral 0V so its the same here except using the two hot phases instead of hot and neutral. The main thing is the voltage between the two wires is 220V
I got a 3phase motor, but there is only 3 wires and not 6. I wish to run it on a VFD with supply in single phase, but I wish to test the quality of motor before buying a VFD. How do you test it on single phase with only 3 wires?
If it were the correct way to achieve this solution, nobody would ever spend money on phase converters. The "easy way" is *ALWAYS* the wrong way. In motors, as well as in life.
Damn, I've been looking in yt for someone who can decode this process for a quiet long time. Im glad ive found this. Thanks jean, you're new sub here
At last someone has finally told me how to do it and also the formula for the capacitor/power. I have been waiting for thgis all my 42 year working life. Very didactical and explicit like no one has explained before. Thank you.
Same thoughts here Michel.
What's the formula for capacitor selection
@@samueladegun8427 70 pr kw
I have 4kw 3 phase motor, so looking at the calculation, tbat works out to be a 280uf capacitor, have I got that right?
Why did he divide 70 microfarads by 10?
Excellent presentation with content. Simple language. Easy to understand.
I Don't care how he spells as long as he is explaining the right thing and i understand him, thank you jean for loading this video better than not loading this video. and thank you tamas for extra information.
Always wanted to know how to do that. Thanks for sharing
Fantastic always wanted to do that. Brilliant my lad. From Phillip Roberts Zambia central Africa.
Top video and top explanation! Thanks and all the best. 🇬🇷👍🇦🇺
Thank you man, I appreciate the video. I'm sorted now
Simulating, very well presented, and valuable solution.
This is the best explained video I have ever seen many thanks 🙏
Thank you so much, this has been most helpful
ONE THOUSAND THANK YOU,FOR YOUR VIDEO ,MARVELOUS
So helpful another subscriber to you channel...cheers mate
THANK YOU. EASY TO FOLLOW.
WELL explained
Hi Jean ..can you do a video about converting an alternator to electric motor ..
Ive watched alot of videos on the topic but you explain it so easy
Thanks from SA, well explained, even a dummy like me can understand
Thanks for your sharing it with us. This is a great tutorial and very informative.
dl
Thank you man for always giving me coin
Thank for showing the wire connections to use three phase motors. Peace
Thanks! Much appreciated. Subbed.
To reverse rotation is enough to connect supply to other side of capacitor.
Delta config ports from left:
1 - power (live), 2 - power (neut.)+ cap, 3 - cap = left rotation.
1- power (live), 2 - cap, 3 - power (neutral) + cap = right rotation.
If configuration was changed to star You weaken motor substantially because lower voltage on winding section.
hi, your answer catch my attention, however i don't understand by what is 1. 2. and 3. which one of the numbering represent U1 V1 W1 or U2 V2 W2? could you explain it in basic form?
@@xtesster 1,2 and 3 are points of apply power: L1, L2 and L3 on typical motor terminal box description, it should be U1,V1,W1 row of terminals.
what kind of capacitor use ( starting or running ) and how many uf for 3hp 3ph connect to 1ph 220
@@easywaycircuit9233 For 3ph motor running capacitor only. 380/400V star configuration motor should be ran on 220/230V with delta configuration and 150uF capacitor (50uF/hp or 70uF/kW). Remember proper type of capacitor (motor run type and voltage ratings).
@@adamw.8579 ok thanks so i need to use running capacitor @ 150uf for my ( 3ph , 3hp/2.3kw , 4 pole motor ) right ?
I though I was hearing a whistle on my house, then I notice it was your video haha!
pls what kind capastir n number you hv uesd runing or sitater?
Wow great video. Thanks for the information.
Thank you for the video. What is the biggest kW motor that this can be done on?
That is amazing you are the best 👌🏻❤
Lekka my bru... Dankie vir die video!
Nice. Thx. Would have been nice to give values about amps and torque on 3phases vs 1 phase
Thanks for rough estimate of capacitor. Can I get the calculation for the accurate value of capacitor from any source ?
Good One there. Well Explained.
Thank you for making another good video. Could you make a video on float switch connected to a pressure pump and motor.
Thanks to show as
That refreshing my mind and what i mist
I know and learning from a pro and how do you explaining to me is so wonderful thanks
Go on with this greatest to helps the rockies thanks
Wow it's useful ☺️ thanks for upload.
interesting and verry usefull , i have a drillpress that i need a new condensator for this makes it easy to find the right one
a few things i wonder about , does the voltage in the country matter when it comes to the amount of micro fahrad needed ?
and if i have a 16 amp fuse at 220 volts i can use about 2500 watt safely (70 percent) without the fuse blowing as soon as you get a peak current draw at startup , will the wattage of the three phase motor be the same with this setup as it would in 3 phase or increase ?
Most Useful Thank you Regards Chris
Hi Jean B, Your Great Video are gratefully appreciated...hope I can ask your opinion on Dc motor. Thank You & keep it up with your Brilliant Video!
Hello my dear friend, thank you for this sharing, very informative like big, fully watched from philippines👍🤝🙏🏼👏👇🏿👇🏿👇🏿👇🏿
great!! thanks for sharing!!
When the motor is running, use a meter to measure the voltages between the windings. Change the size of the capacitor to achieve similar values between windings.
Incorrectly sized capacitors can cause high voltages and damaged windings. When you have balanced the voltage across windings, like Jean said, it may be necessary to switch in
an additional capacitor to provide sufficient starting torque. Like Tamas said, motor will not achieve its rated power. I need to check how this modification will effect RPM.
Leave the terminal links in delta as at the beginning of the video. Just move neutral to the other side of the capacitor to reverse rotation.
As per A I Reid below - use an inverter for best results !
I bought 25ùF for 0.37 kw
It's the right one ?
And can i connect in star winding? Without losing power?
Thanks a lot, you are the best
thank you for the knowledge. great video. only criticism i have is the capacitor wire you connected to U2 was wrapped on the post backwards. being an electrician you should always wrap the wire clockwaise so when you tighten the nut down, it will tighten on the wire and not try to push it out.
OOOOHHHH MY GOD
Thanks for the video👍
Very nice video..,., excellent 👌
good presentation !!
wow...very simple explanation....
I have a Cleveland steamer with three phase but I only have single phase, what kind of capacitor should I buy? It is 208v three phase
nice video sir. helped me to answer my exam
Thats cool, thank you.
if i have a 3phase motor with a power of 7.5k.. my asks.. can run it over single-phase as the method you explained.. even this motor need more torque for starts because it works on a cement mixer.
Don't know if I am using the wrong capacitors or what could be the problem and I'm plugging into my wall plug that's 30A should I run it from main box, the fan makes as if it wants to start then it just humz then when you put it of you can see it stops
Can we get 120 degree phase difference between the terminals in this method?
Hi, this trick works for shot term. If you run your motor for an hour or two you will definitely fry it. Use a frequency converter or disconnect the capacitor with a simple switch right after the full revolution of the motor.
Probably the capacitor used there is for running, if it were for the starting it won't even start remember a this is a three phase motor.
What type of resistor do I need if my motor spec sheet only gives the following : amps on lo voltage (220) 8.6 amp, cycles-60 , 3 phz motor.
Very good useful data
Thanks a lot!
Thanks for sharing. One question, is there a kw range that this method can be used (not outside)?
Or maybe HP ranges
Good Job!
His demonstration is good
If you need to run a three phase motor on single phase, get an inverter drive. This is an effective way and you will not lose any power as running on just single phase does. You get the extra benefit of speed control and inherent overload protection.
While the above will run it's not good practice.
@KC JONES
It's called a Vfd ( variable frequency drive on e-bay 80 quid in uk )or more common an inverter but proper inveters still use 3phz to supply
Still need to be careful full as they Chinese and not all termination is correct you do need to understand electrical drawings if as if ya poke n hope you'll blow it and you up
I had one was ok till got pinched had it running of a generator as well so full 3phz portable set up
WE DON'T CARE GOOD PRACTICE OR NOT. IMAGINE YOU ARE IN A JUNGLE, YOU NEED TO RUN THIS MOTOR IN ORDER TO SAVE LIVES. HE DID A GOOD JOB, STOP CRITICISING TO SHOW OFF
Freddo,
we are not in a jungle.
My advice was to give the best outcome and have a reliable machine that will work as designed. Bodging a three phase supply this way reduces power dramatically.
@@freddokuckelmann8502 *EXACT-A-MUNDO*
reminds me when on a date my car's alternator gauge said zero volts. popped the hood no alternator belt, told girl "i need your panty hose" (they were stockings) long story short she was shocked, i ripped them off used as alternator belt... 3 years later became my wife for the next 20 yrs. point is when in *dire straits* we do what we got to do to get the job done. it's money for nothing and chicks for free plus my MTV
@@freddokuckelmann8502 *EXACT-A-MUNDO*
reminds me when on a date my car's alternator gauge said zero volts. popped the hood no alternator belt, told girl "i need your panty hose" (they were stockings) long story short she was shocked, i ripped them off used as alternator belt... 3 years later became my wife for the next 20 yrs. point is when in *dire straits* we do what we got to do to get the job done. it's money for nothing and chicks for free plus my MTV
Thank you sir..
Hi... very informative.. i received a 3ph induction motor which was modded to run off 1ph but i see no cap and direction can be changed/chosen by hand spinning when startup... is it because of missing cap?
Hi Andre.
Yes I will say that it is because there is no cap.
You are running in two phase. Cause your motor is 3phase. One phase is missing. Running this motor continuously, you will cause overheating and burn the motor winding. That is why you need this capacitor to compensate the missing phase in order to assist the missing phase voltage supply to the motor, and ease the torque rotation of the motor.
Great ,but does the power and speed changes
that is a useful video thanks sir
Hi, thanks for the show. Question. Maybe you can show us how to run a three phase AC off 24v DC battery?
Without inverter, its impossible.
great, what would be max size motor one could change, very interesting
He just wired it wrong for reversing that motor, it will work but half the power of the other direction because he wired as delta for one direction and star for the other, the wiring is the same before but swap the phase and capacitor connection, now you have reversed the motor with the same torque, the capacitor value is approximately 8uf for every 100 watt of motor power, eg 60uf 1hp or 750watt motor.
Thank you. I thought the same, just swap contact points 👍🏾
How is it Jean B I have a 3 phase fan that I connected according to your video but the fan is just humming but not running I don't have a lot of info on the fan because no specifications on the fan it's self wondering if you could help me
Thank you for your help me👍👍
so I have a 4kw 3phase motor, as far as the calculation goes the capacitor I need is a 280uf, to run 240v, have I got this right?
thanks so much for this, please also consider doing a video on connecting a 3 phase inverter welder with single phase power
Good work👍
Yes, to reverse simply move Live wire from U1 to W1 and move the wire of the capacitor from V2 to W2 and the motor torque is maintained. working from his diagram at 4 Mins. 16 sec, in.
Thank you for the expa
Yesssss. Tanking youu
Hi,
Thank you for the video. It is very informative.
I did follow your step and it worked. But later the motor wont start anymore.
Is it because the capacitor or what?
Does the capacitor needs to be recharged or not?
Please reply me.
Thanks!
Hi Naufal
If the motor is making a noise as if it wants to start then it might be the capacitor that is faulty.
It does not need to be charged. It either works or fails.
It might be the motor as well. A coil that fails can cause a motor to stop working completely.
If you're lucky it could just be a loose wire...
@@p0we111 Ok, thank you for your reply!
Much appreciated
Test capasitor pakai multi meter. Jika short atau putus ganti. Gunakan kapsitor non polar dgn teh kerja diatas tegangan jala2.
It would be nice if the diagram was a circuit diagram, also showing the alphabetic letters as they appear on the terminal box!
Thanks for the video well done!
Thanks Glenn Lopez for the comment! The crude diagram with the numbers as they appear on the terminal box start from 2:00.
@@p0we111 an how do you wire it up if you have a 6core wire
Outstanding video
thank you sir for this vidio..
Good old south african booytjie. Thanx from PE
I did this on a larger motor but the capacitor started blowing out a white smoke. Do you know why this might happen and also do i always need a capacitor?
Please when you look at the speed, will it be the same as compared to connecting it to a 3phase supply.
Thanks
Thank you boss
Good information thanku
I have a 1.8 kw pump three phase. Can l run it on single phase or its too big? And how big the capacitor?
Hi Jean
Can you upload a video about on a centrifugal switch of a motor
Well explained
Can you swap the Capasitor wire from neutral to live teminal in the delta format to change te rotation?
You are correct . It's that easy but he isn't aware so he changed the connection to star, which also changes the motor to a higher voltage thus causing it to loose considerable power though it's reversing . The last part of his video is wrong .
Hi.
How to model a single phase motor? Why it doesn't self excite?
Thanks a lot for knowledhe
Good info.
What permanent capacitor should i get for 3kw motor
@Jean B - Nice presentation style but you could simply move the neutral to the other size of the capacitor to reverse direction.
Why conflate Star/Delta with direction change unless you are confused?
Hi
In the US we have 2 hots to make 220v. I have a neutral and 2 hots, where would I connect the 3rd wire (perhaps Delta with live, neutral, live, and then start capacitor between neutral and live?)? Thanks
@@CrapInHell (1) Connect the 3 links for delta configuration like in the video.
(2) Connect the 2 hot wires to any two of the motor inputs. (3) Connect one side of the Capacitor to the third motor input. (4) Connect the other side of the capacitor to one of the hot terminals for one direction or the other hot terminal for the other direction.
Thanks for the quick response!
Do I not need to connect the Neutral line?
Will it have enough power to just run with the start capacitor?
Thanks again!
@@CrapInHell Leave the neutral open. I am assuming the motor is rated 220/400V, you have two hot phases 120 degree apart. We have single phase 220V hot and neutral 0V so its the same here except using the two hot phases instead of hot and neutral. The main thing is the voltage between the two wires is 220V
Awesome. Thank you so much for your help, very much appreciated!!!
Thank you.
Please how do you select your capacitor for such work.
Keep in mind that this will always heat your motor up, no matter how good you size your capacitor.
The cooling (most-times a fan) on nearly all motors is calculated for that (little) extra heat.
thanks for the additional tip you good man
Hi master, i have 220v, 1Hp, 60Hz, 3.65A. 10mfd is okay to use?
For 4kw 5.5hp 50 hz 3 phase motor what size of capacitor should i use? Can you please advise 😊
I got a 3phase motor, but there is only 3 wires and not 6. I wish to run it on a VFD with supply in single phase, but I wish to test the quality of motor before buying a VFD. How do you test it on single phase with only 3 wires?
Nice video. How much power do they lose when you connect single phases? What about rpm?
I would like to know this too please!
I have Cleveland Steamer 208v three phase 16.3 kilowatts but I have single phase output. What kind of capacitor should I buy?
Please help
Would it be possible to run really big motors, say 20-30hp like this? Is this connection hard on the motor over time?
If it were the correct way to achieve this solution, nobody would ever spend money on phase converters.
The "easy way" is *ALWAYS* the wrong way. In motors, as well as in life.
nice work